Device and method for simultaneous sensing and measurement of optical fiber distributed dynamic and static parameters
An optical fiber distribution, sensing measurement technology, applied in the field of optical fiber sensing, can solve the problems of inability to measure temperature/strain parameters, high system cost, poor system signal-to-noise ratio, etc., and achieve fully automated preparation, low system cost, monitoring high precision effect
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[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0032] figure 1It is a structural diagram of a device for simultaneous sensing and measurement of optical fiber distributed dynamic and static parameters. The device includes 1 broadband light source; 2 narrowband DFB laser source; 3 wavelength multiplexer; 4 polarization scrambler; 7 erbium-doped fiber amplifier EDFA; 8 chirped grating with high reflectivity, 12-14 three-port circulator; 9 single-mode fiber (sensing fiber); 10 narrow-band grating; 11 broadband grating; 15 dispersion compensation fiber ; 16-17 Faraday mirrors; 18 3*3 couplers; 19 piezoelectric ceramics PZT; 20-23 photodetectors 1-...
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